Struggling with my iman and needing guidance

Assalamu alaykum, everyone. I’m a young sister who has always tried her best to follow Islam and avoid what’s forbidden. But recently, something’s been heavy on my heart. After being bullied for a long time, I started wearing makeup. I know some scholars say it can be sinful in certain cases, and I get why. At first, I felt really guilty. But then someone told me that all my good deeds-my salah, reading the Qur’an, making du’a, my daily dhikr-are useless because I’m doomed to Hell just for wearing makeup. That completely broke me. Instead of drawing me closer to Allah, those words pushed me away. I stopped making du’a, stopped reading the Qur’an, and lost a lot of the hope I once had. Alhamdulillah, I still keep up my five daily prayers, but inside I feel shattered. I’ve even had frightening thoughts like, “If Allah is the Most Merciful and Most Forgiving, why would He throw me into Hell with truly evil people just because I wear makeup?” I hate thinking this way. I want my connection with Allah back, but I’m lost, confused, and in pain. Please, if anyone can give sincere advice from the Qur’an and authentic Sunnah, I’d be so grateful. Jazakum Allahu khayran.